Physics Letters A
Physics Letters A > 2017 > 381 > 36 > 3101-3106
Physics Letters A > 2017 > 381 > 40 > 3441-3444
Physics Letters A > 2017 > 381 > 44 > 3766-3772
Physics Letters A > 2017 > 381 > 36 > 3101-3106
Physics Letters A > 2017 > 381 > 40 > 3441-3444
Physics Letters A > 2017 > 381 > 44 > 3766-3772